Title:
含フッ素ポリマーの製造方法および含フッ素イオン交換ポリマーの製造方法
Document Type and Number:
Japanese Patent JP7276330
Kind Code:
B2
Abstract:
To provide a method for producing a fluorinated polymer, in which it is possible to efficiently and easily control the molecular weight to be proper when polymerizing a perfluoromonomer having a dioxolane ring containing a polymerizable double bond in the ring skeleton, and in which the obtainable fluorinated polymer is less susceptible to a decrease in molecular weight even when contacted with a base. A method for producing a fluorinated polymer, comprising polymerizing a raw-material mixture which contains at least one of a monomer composition M11 which comprises a perfluoromonomer represented by the formula m11 and a fluorinated monomer m11H having at least some of fluorine atoms of said perfluoromonomer substituted by hydrogen atoms, and a monomer composition M12 which comprises a perfluoromonomer represented by formula m12 and a fluorinated monomer m12H having at least some of fluorine atoms of said perfluoromonomer substituted by hydrogen atoms, wherein the total amount of the fluorinated monomer mil H and the fluorinated monomer m12H is from 10 to 1,100 ppm to the total amount of the monomer composition M11 and the monomer composition M12.
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Inventors:
Mitsugu Saito
Akira Motomura
Hiroyuki Watanabe
Akira Motomura
Hiroyuki Watanabe
Application Number:
JP2020519922A
Publication Date:
May 18, 2023
Filing Date:
May 16, 2019
Export Citation:
Assignee:
AGC Inc.
International Classes:
C08F34/02; H01M4/86; H01M8/10; H01M8/1039; H01M8/1069
Foreign References:
| WO2018062193A1 | ||||
| WO2017033776A1 | ||||
| US3978030 | ||||
| US4973142 |
Attorney, Agent or Firm:
Patent Attorney Shiga International Patent Office